 This is a modular ATM based switch made by 3Com and part of the Core Builder family.
The top of the chassis houses two redundant power supplies and there is a 16×16 switch module in the next, thin slot, this also includes a serial and ethernet management port. Underneath that, there is space for a redundant switch module.
 This is a modular ATM based switch made by 3Com and part of the Core Builder family.
The top of the chassis houses two redundant power supplies and there is a 16×16 switch module in the next, thin slot, this also includes a serial and ethernet management port. Underneath that, there is space for a redundant switch module.
Modules are available with 155MB/s fibre and utp ports and an atm to ethernet bridge, the ethernet ports on this terminate on a telecoms style Centronics multiway connector. I believe they are 10MB/s only. 
http://www.rainsbrook.co.uk/networking/3com/cellplex/A1892b.jpg 
http://www.rainsbrook.co.uk/networking/3com/cellplex/A1892main.jpg 
http://www.rainsbrook.co.uk/networking/3com/cellplex/CB7000.jpg 
http://www.rainsbrook.co.uk/networking/3com/cellplex/CellPlex7000-33_1.JPG 
http://www.rainsbrook.co.uk/networking/3com/cellplex/cellplex-e3_1.jpg 
http://www.rainsbrook.co.uk/networking/3com/cellplex/prod_132.jpg 
https://www.youtube.com/watch?v=ofb-fxTdrdw 
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